“[Genre is] like working in any form—in poetry, for example. When you work in form, be it a sonnet or villanelle or whatever, the form is there and you have to fill it. And you have to find how to make that form say what you want to say. But what you find, always—I think any poet who’s worked in form will agree with me—is that the form leads you to what you want to say. It is wonderful and mysterious.”